We'd thought these were ancient mines; and some probably started out that way.

It was like being entombed in the shaft of an ancient mine, one that had been abandoned for centuries.

It took them half an hour to get to the opening of the ancient mine, and by that time it was nearly dark.

But it must have happened-the discovery of the ancient mine had been evidence of that.

Ľubietová is famous for precious minerals that can be found inside the ancient mines.

The tunnels and shaft are part of an ancient mine.

Even an ancient mine, cheap and easily obtainable by any nation in the world, could do her serious damage.

Remnants of such ancient mines have been found all over what is today the Middle East.

We are directly above the outermost limits of the ancient mines.

Contained by the side of the ancient mine, the resulting crash sounded muted, nothing much.